Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flow from operating activities:
Net income (loss)	$ (63.3)	$ (52.2)
Adjustments to reconcile net income (loss) to cash flow used by operating activities:
Depreciation and amortization	67.1	58.6
Share-based compensation	13.7	6.8
Gain on sale of assets, net	(7.7)	(0.4)
Impairment of assets	0.0	3.1
Deferred income taxes	(17.9)	(8.7)
Other	(1.9)	0.8
Changes in certain assets and liabilities, net of the effects of acquisitions
Trade receivables	(17.9)	(36.8)
Inventories	(92.5)	(16.9)
Accounts payable	(3.6)	(22.4)
Prepaid and other current assets	(29.1)	(31.2)
Deferred revenue	60.3	82.0
Warranty liability	(12.9)	(8.5)
Certain other assets and liabilities	(36.6)	(40.5)
Net cash provided (used) by operating activities	(142.3)	(66.3)
Cash flow from investing activities:
Capital expenditures	(20.2)	(12.1)
Payment for acquisitions	(5.8)	0.0
Proceeds from maturities of investments	104.6	84.9
Payments for purchases of investments	(45.5)	(95.1)
Proceeds from sale of assets	9.2	2.0
Increase in certain other assets	(3.2)	(8.7)
Net cash provided (used) by investing activities	39.1	(29.0)
Cash flow from financing activities:
Dividends paid	(7.7)	(7.6)
Revolving credit facility (repayments) borrowings, net	(75.0)	20.0
Other debt borrowings	26.0	19.1
Other debt repayments	(31.7)	(84.0)
Distributions and payments to noncontrolling interest holders	(0.5)	(15.7)
Issuance of common shares	0.0	0.3
Repurchase of common shares	(2.5)	(4.6)
Net cash provided (used) by financing activities	(91.4)	(72.5)
Effect of exchange rate changes on cash and cash equivalents	21.5	5.2
Increase (decrease) in cash and cash equivalents	(173.1)	(162.6)
Cash and cash equivalents at the beginning of the period	535.2	652.7
Cash and cash equivalents at the end of the period	$ 362.1	$ 490.1